This came to me from the Keck public general e-mail list. It is an
invite to the public to hear this person speak.

I figured if one could not attend the lecture (I sure couldn't), they
might at least like to know about it and the person giving it if they
wanted more information on the subject he is talking about. I also
assume the person lecturing is not being forced to do this function.

Does this mean that I and other cannot post notices on lectures
about space and astronomy unless they are members of HZ? And
how does one become a member when there is no mechanism to
actually join other than having an Internet connection?